Notices
 
 

  

User Tag List

Thread: Turbo Issues Fault Code P334B

Page 1 of 5 123 ... LastLast
Results 1 to 10 of 43
  1. Turbo Issues Fault Code P334B 
    #1
    Join Date
    Dec 2017
    Location
    Swansea, Wales
    Posts
    33
    Post Thanks / Like
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quoted
    2 Post(s)
    Anyone had fault code P334B on their A1 - mine's a 1.0 TFSI. The meaning is Charge Pressure Actuator Mechanical Malfunction. I'm hoping it's just the actuator and not the turbo, but I'm not sure whether the actuator can be replaced separately on this car.

    For starters, anyone know whether the actuator is electronically operated?
    0 0 0
     

  2. Re: Turbo Issues Fault Code P334B 
    #2
    Join Date
    Jan 2007
    Location
    Nottingham, England
    Posts
    42,103
    Post Thanks / Like
    Blog Entries
    4
    Mentioned
    108 Post(s)
    Tagged
    1 Thread(s)
    Quoted
    1816 Post(s)
    It is the wastegate spindle seizing in the turbine housing, we are doing lots of these 1.0, 1.4 and 1.5 FSI turbo rebuilds. When it seizes, the gears in the (yes, electric) actuator strip. If a new actuator (04E 198 725 G £206.46) is fitted, this will also strip and the warranty for the part refused.
    Anthropogenic climate change, the biggest con inflicted on mankind since religion...

    Slava Ukraini
    !


    0 0 0
     

  3. Re: Turbo Issues Fault Code P334B 
    #3
    Join Date
    Dec 2017
    Location
    Swansea, Wales
    Posts
    33
    Post Thanks / Like
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quoted
    2 Post(s)
    Quote Originally Posted by Crasher View Post
    It is the wastegate spindle seizing in the turbine housing, we are doing lots of these 1.0, 1.4 and 1.5 FSI turbo rebuilds. When it seizes, the gears in the (yes, electric) actuator strip. If a new actuator (04E 198 725 G £206.46) is fitted, this will also strip and the warranty for the part refused.
    Thanks for that - at last, someone who knows what they're talking about! If I could give you more info...

    The car is a 2017 model, it's a 1.0 3 cylinder TFSI petrol, and it's only done 11K miles - would you expect this kind of fault after so little mileage? All I can offer as an excuse is that during the pandemic, it did sit idle for a few weeks, and the problem started after that.

    My local garage have had a look. They're not VAG specialists, but they did have some diagnostic tools. The mechanic told me that the actuator arm is moving, but he's suspicious that it's not moving far enough. I think he was able to test the actuator using his diagnostic tool - at least I could hear something clicking back and fore, every couple of seconds. I couldn't see it because it's tucked away at the back of the engine. They wanted me to drive it for a while to see if it clears up, but it hasn't. I must be honest, I have a code reader so I can clear fault codes, but they always come back. Strange thing is, the car goes really well (as far as I know) apart from maybe a lack of power pulling up steep hills.

    Can I ask you what would be your advice? Should I take it to a VAG specialist? Or a turbo specialist? There's not an abundance of either around here in South East Wales.
    0 0 0
     

  4. Re: Turbo Issues Fault Code P334B 
    #4
    Join Date
    Jan 2007
    Location
    Nottingham, England
    Posts
    42,103
    Post Thanks / Like
    Blog Entries
    4
    Mentioned
    108 Post(s)
    Tagged
    1 Thread(s)
    Quoted
    1816 Post(s)
    Is it a CHZB, CHZE or DKLD engine?
    Anthropogenic climate change, the biggest con inflicted on mankind since religion...

    Slava Ukraini
    !


    0 0 0
     

  5. Re: Turbo Issues Fault Code P334B 
    #5
    Join Date
    Dec 2017
    Location
    Swansea, Wales
    Posts
    33
    Post Thanks / Like
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quoted
    2 Post(s)
    Quote Originally Posted by Crasher View Post
    Is it a CHZB, CHZE or DKLD engine?
    It's a CHZB.

    And code P334B00 is back, after a long drive yesterday. No EPC or EML lights on yet - but it'll only be a matter of time.
    0 0 0
     

  6. Re: Turbo Issues Fault Code P334B 
    #6
    Join Date
    Jan 2007
    Location
    Nottingham, England
    Posts
    42,103
    Post Thanks / Like
    Blog Entries
    4
    Mentioned
    108 Post(s)
    Tagged
    1 Thread(s)
    Quoted
    1816 Post(s)
    P334B - Charge Pressure Control Actuator: Mechanical Malfunction

    Does your code reader have output tests? I would (when cold!) disconnect the actuator and see if the wastegate lever moves smoothly, if it is tight the turbo will have to come off and be rebuilt. Midland turbo have saved a number of these units now for us, we are lucky they are so close; I would say they are probaly the only company we use that has never let us down even slightly in 20 years of using them. One point about these though, they must be the easiest turbo ever to remove apart from the 3L V6.
    Anthropogenic climate change, the biggest con inflicted on mankind since religion...

    Slava Ukraini
    !


    0 0 0
     

  7. Re: Turbo Issues Fault Code P334B 
    #7
    Join Date
    Dec 2017
    Location
    Swansea, Wales
    Posts
    33
    Post Thanks / Like
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quoted
    2 Post(s)
    Quote Originally Posted by Crasher View Post
    P334B - Charge Pressure Control Actuator: Mechanical Malfunction

    Does your code reader have output tests? I would (when cold!) disconnect the actuator and see if the wastegate lever moves smoothly, if it is tight the turbo will have to come off and be rebuilt. Midland turbo have saved a number of these units now for us, we are lucky they are so close; I would say they are probaly the only company we use that has never let us down even slightly in 20 years of using them. One point about these though, they must be the easiest turbo ever to remove apart from the 3L V6.
    I'm afraid my code reader doesn't do that - it's just a £50 Ancel jobbie.

    Thanks for the advice. First of all I thought you meant to check the movement of the actuator rod (once the actuator's disconnected), which made no sense to me, but then I realised you meant the lever on the turbo end. Removing the actuator would be beyond me, but do you know roughly how much the actuator should move from open to close? And should you be able to move it by hand?

    I don't know for sure, but I have a feeling that my local Audi dealer would want to change the whole turbo and save themselves all the trouble of diagnosing the problem - which I expect would be mega $$$$. Even an independent is going to be $$ I expect. Hey ho.
    0 0 0
     

  8. Re: Turbo Issues Fault Code P334B 
    #8
    Join Date
    Jan 2007
    Location
    Nottingham, England
    Posts
    42,103
    Post Thanks / Like
    Blog Entries
    4
    Mentioned
    108 Post(s)
    Tagged
    1 Thread(s)
    Quoted
    1816 Post(s)
    I would say around £800 typically at an indi. The amount of movement is not important, it is if the wastegate flap spindle is free. A new actuator on a rebuilt turbo has be matched to the car.
    Anthropogenic climate change, the biggest con inflicted on mankind since religion...

    Slava Ukraini
    !


    0 0 0
     

  9. Re: Turbo Issues Fault Code P334B 
    #9
    Join Date
    Dec 2017
    Location
    Swansea, Wales
    Posts
    33
    Post Thanks / Like
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quoted
    2 Post(s)
    Quote Originally Posted by Crasher View Post
    I would say around £800 typically at an indi. The amount of movement is not important, it is if the wastegate flap spindle is free. A new actuator on a rebuilt turbo has be matched to the car.
    Thanks for that. I'm hoping this is a case of the wastegate lever sticking. Can you give me some idea of how difficult it is to remove the actuator on an A1, to see if the lever can be freed? Not because I think I can do it myself - just so I know what a garage would need to do. For example, I don't want them saying it involves removing the whole turbo if that's not true. I know it's in an awkward place but that's all I know.
    0 0 0
     

  10. Re: Turbo Issues Fault Code P334B 
    #10
    Join Date
    Jan 2007
    Location
    Nottingham, England
    Posts
    42,103
    Post Thanks / Like
    Blog Entries
    4
    Mentioned
    108 Post(s)
    Tagged
    1 Thread(s)
    Quoted
    1816 Post(s)
    If it is seized, the spindle and the bore get damaged and have to be reengineered so it has to come off. The way to check is remove the actuator arm clip and see if the spindle is free, if not it will need a rebuild.
    Anthropogenic climate change, the biggest con inflicted on mankind since religion...

    Slava Ukraini
    !


    0 0 0
     

Page 1 of 5 123 ... LastLast

Similar Threads

  1. Please Help Recon turbo with po299 fault code
    By Leon48 in forum Vehicle Diagnostics Equipment- Except VCDS
    Replies: 2
    Last Post: 23-03-2016, 09:59 AM
  2. Turbo fault code
    By mini-mad-matt in forum Audi A4 - B7 Forum - 2005 - 2008
    Replies: 11
    Last Post: 09-10-2015, 10:35 AM
  3. B6 1.8 TURBO P0103 FAULT CODE, any ideas???
    By deian3387 in forum Audi A4 - B6 Forum - 2002 - 2005
    Replies: 2
    Last Post: 17-11-2009, 10:09 PM
  4. Tdi 110- Turbo? Fault Code 17958
    By lastyboy in forum Archive posts
    Replies: 5
    Last Post: 18-10-2007, 10:09 AM
  5. 130 PD Turbo pressure problem fault code 17964
    By julesuk in forum Passat - B5 Forum - 1997 -2005
    Replies: 6
    Last Post: 01-06-2007, 11:55 PM
Bookmarks
Bookmarks
Posting Permissions
  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  


 



  


Disclaimer: VW Audi Forum is an "independant enthusiast website", administered in line with guidelines supplied by VAG in the UK, and is in no way related to any of the Worldwide Volkswagen,Audi,Seat,Skoda,Bentley,Bugatti,Porsche or Lamborghini group of Companies. For official up to date information on any of there vehicles, please visit the official websites. Any comments made throughout this website, are the views of the respective poster, and in no way represent the views of the VW Audi Forum Administration, or the worldwide Volkswagen & Audi Group of companies.


VW Audi Forum do not vet and are not responsible for any information which is posted in this forum. All content is viewed and used by you at your own risk and we do not warrant the accuracy or reliability of any of the information.


Copyright: Certain "words", "phrases" and "Images" used on this website by the Administration are "Copyright" of Volkswagen GB, Volkswagen AG (Germany), Audi GB, Audi AG (Germany), Volkswagen Motorsport GB, Volkswagen Motorsport AG (Germany), Audi Motorsport AG (Germany), Volkswagen Racing GB, Bentley, Bugatti, Porsche and Lamborghini. No image can be replicated by anyone WITHOUT the relevant Companies written permission.


All trademarks and copyrights remain property of their respective owners.

No part of the VW Audi Forum website or forum may be reproduced without written permission from the site administration


PLEASE NOTE - PERSONAL ABUSE, ABUSE AGAINST THIS OR ANY OTHER WEBSITE OR ANY COMPANY WILL NOT BE TOLERATED. OFFENDERS WILL BE MODERATED OR EVEN BANNED.


This website and forum are best viewed at a minimum resolution of 1024 by 768.



  



- VW AUDI Forum - The #1 Volkswagen (VW) Group Forum - Volkswagen (VW) - Audi - Seat - Skoda - Bentley - Bugatti - Lamborghini - Porsche - Scania - MAN - Ducatti - VW Audi Forum -


- www.vwaudiforum.co.uk - www.vwaudiforum.co.uk -